Drying process and apparatus for tentering and other machines.



F. P. BOLAND. DRYING PROCESS AND APPARATUS FOR TENTERING AND OTHERMACHINES.

APPLICATION FILED APR. 19. I91].

Patented Feb. 11, 1919.

2 SHEETS-SHEET I.

F. P. BOLAND.

DRYING PROCESS AND APPARATUS FOR TENTERING AND OTHER MACHINES.

' APPLICATION FILED APR. 19. I91].

1,294,035 Patented Feb. 11, 1919.

2 SHEETSSHEET 2.

autumn 7 cIs 2.30am, or raovxnnncn, nnonn ISLAND.

the stretching thereof or otherwise, and con-' serving the heator'drying medium in such a manner as to render the operation more speedyas well asmore convenient and with greater comfort to the attendant.

A further object of the invention is the provision of an apparatus forcarrying out such a process, certain embodiments thereof being hereinset forth, the present structure being illustrated in connection with atentering machine and adapted for 'drymg the fabric during itsstraightath of travelthrough the ten-tering machine, an object of the presentstructure being .the elimination of the ordinary heating rollers or hotcans as well as the'tortuous or multipleof plies or paths of travelthrough the drier as heretofore employed. Broadly considered, thepresent invention contemplates a process and any apparatus capable ofcarrymg out the same consisting of forcibly assing a suitable dryingmedium-throng afabric or the like preferably simultaneously withacontinuous passage of the fabric through a stretching orother form offinishing machine,jthe drying medium being suitably conserved underregulation and prevented [from escaping from thearticle-containingportion of the machine during-the drying operation.

In the drawings forming a part of this application a form of. apparatus,with modifications is illustrated for commerciallv piactising thepresent process and it will understood that many apparatus may bedesigned for carrymg out the same without departing from thespirit andthe scope of my present invention. 7

I Like reference characters designate corre Specification of Lettersfaten t. Application filed Apri1 19, 1917. Serial No. Miami.

other forms. of

roof for the chambers 18 is centrally pro- Patented Feb. ii, are.

ponding parts throughout the said drawlngs, in which; i

Figure 1 is a side elevation of a tentering machine provided with thepresent device parts being-broken away.

Fig. 2 is'a top plan view thereof.

Fig. 3 is a vertical transverse sectional view through the same withparts broken away.

Fig. 4 is an elevational view of a form of separate drier embodying theprinciples of my invention.

Fig. 5 illustrates a difierent form of heat ing means for use with theconstruction shown in Figs. 1 and 2, and,

Fig. 6 illustrates a further embodiment of the device upon a reducedscale showing a still further heating arrangement.

Referring more especially to Figs. 1, 2,

and 3 of the drawings, an apparatus is therein illustrated for carryingout the present drying process in connection with a well known form oftentering machine 10 having the usual tentering'chains or belts 11,'upon which the fabric 12 is adapted one or more chests 0r casings 16preferably arranged intermediate the frame standards or uprights 17 ofthe tentering machine 10, each chest providing an upperchamber 18 forthe free passage of the cloth 12 and its conveyer means longitudinallytherethrough,

the ends of the chamber 18 being open, and also provides a compartment19 beneath the belts adapted for housing suitable heating members suchas coil or plpes 20 therein, the said compartment 19 being open at thebottom thereof.

The top 21 of each chest 16 forming the vided with a transverselyarranged outlet hood 22 herein shown of double formation adapted forconducting the heating medium from the chamber 18 into a ,main headeror' outlet ipe 23 bymeans of connecting branch flues 24. ;The outletheader 23 is connected by means of a cross-pipe 25 with the entrance ofa circulating fan or blower 26 suitably mounted adjacent the devicewhile the outlet pipe 27 of the blower 26 has a similar header 28provided with depending pipes 29 terminating in angularly positionedfree ends '30 beneath the chests 16 and each provided with a flaringhopper form of outlet mouth 31 slightly projecting within thecompartment 19 centrally beneath the heater 20 therein contained Thechest -16 may be suitably mounted upon corner legs 32 and have side andend walls 33 while free passage for the heating medium is providedthrough the bottom frame 34; of each chamber 18 permitting the air fromthe fan 26 to be desirably raised in temperature by the coils 20 whilepassing upwardly through the compartment 19. The heating medium thenpasses through the cloth 12 and upwardly through the hood 22 by means ofthe partial vacuum or suction created within the hood 22 by the fan 26.

It will be understood that while steam pipes 20 are herein illustratedwithin the heating compartment 19, any other form of heater may beutilized for the same purpose therein, the functioning of the structurebeing the conservation of the drying medium, air being herein used forthe purpose, the conservation being effected by employing the'ai-r overand over again by the action of the fan 26 in forcibly injecting thedrying medium to the bottom of the chest 16 and by suction drawing thesame outwardly at the top thereof after performing its drying operationupon the cloth 12 moving through the chamber 18. It will of course beevident that the bottom of'the compart- -ment 19 bein open, a requiredquantity of outside air will be drawn into the compartment and chambertherethrough but it is further pointed out that very little if any ofthe heating medium escapes from the chamber 18 which is also true of thesteam generated therein by reason'of the contact of the heating mediumwith the moisture ladened cloth 12. This conserving of the drying mediumand the confinement of the generated steam renders the device moreefiicient in operatlon andprevents the intense generation of heatcommonly incident to the operation of tenterin' machine dryers now inuse.

A mo form of heater for the drying medium is illustrated in Fig. 5 ofthe draw- .ing, the same being adapted for employment with the completeform of apparatus illustrated in Figs. 1, 2, and 3 with the exception ofthe. omission of the coils 20 or any other heating device within thecompartment 19. In lieu of the heating pipes 20, a heater casing 35 isprovided adjacent the fan 26' and connected to the inlet end thereofwhile a header 23 connects with the inlet end of the casing 35, it beingunderstood that the said header 23 constitutes the suction outlet headerfor the drying chest 16' in a manner identical to that heretoforedescribed. It

is also noted that the outlet pipe 27 of the.

fan 26' connects with the inlet header 28' for supplying theheating'medium to the said che'sts 16'. A suitable heater such as steamipes or any other form of coil 20 is provided within the casing 35; itwill be apparent that the fan 26 will bring the outfiowing medium fromthe chest 16 into heating contact with the heater 20 by means of suctionprior to entering the fan 26', while from the outlet of the fan themedium so heated will be forcibly impelled beneath the chest 16' fordrying the cloth 12 in the manner heretofore set forth. Similarembodiment of the same principles are involved in the apparatusdisclosed in Fig. 6 of the drawings, in which a suitable heater 20 isprovided at the outlet of the fan 26 while the said fan by suctionexhausts the drying medium from the chest '16 through a pipe 23", a pipe28 being provided for feeding the drying medium beneath the chest 16" ina manner which will be readily understood from the hereinbeforedescription.

The constructions illustrated in Figs. 5 and 6 of the drawingsprovideforms of apparatus, either of which permit of the disposing ofthe heater for the drying medium at a desirable distance from thetentering machine and eliminating the coils from the operating chests,although the principles of t e process are present in each of thesethree constructions, it being also noted that in the forms illustratedby the first three figures of the drawings as well as that of Fig. 6,the heater for the drying medium is disposed in advance of the passageof the medium through the cloth being operated upon while in thestructure shown in Fig. 5, the fluid from the cloth-is heated within theinlet or suction conduit of the fan.

A drying unit embodying the same principles is illustrated in Fig. 4 ofthe drawings and comprises a casing or box 36 having heating coils orpipes 37 arranged therein, the cloth or goods 12 to be dried beingpassed longitudinally through the box 36 adjacent one longitudinal side38 thereof.

An operating fan 39 is mounted adjacent the box 36 and has an outletconduit 40 opening at two points as-at4l in the said side 38communicating with the inlet of the fan 39 for ex'haustin the dryingmedium from the box 36 and orcing'the same through "the cloth 12'.

The outlet pipe 42 of the fan 39 is arranged with a branch 43, enteringa short distance within the open end of the inlet operation of the fan39 withthe damper 46 closlng the outlet pipe 42 the air from the pipe44, which connects as at 45 with the A box 36. A damper 46 is providedin the pipe 42 permitting the outflow from the fan 39 to either pass, tothe atmosphere outwardly v the said damper over the pipe 43, orpermitting such.

through the pipe 42 by closing outflow from the fan to enter the boxinlet pipe 44, when the damper 46 closes the pipe It will beunderstoodthat' upon the box 36 which passes from the fan will entertherewith a supply of outside air through chine comprising a chesthaving a .chamber throughwhich ,the article to be dried is adapted topass and further having a compartment communicating therewith andhaving'an open bottom, a'pipe'teifminating the pipe 44 from the pipe 43and carrying through the inlet pipe 44. It will be un-- derstoodwitheach apparatus that may be employed for carrying out the process,such as those herein illustrated, may readily reverse the path of travelof the drying medium through the goods being operated upon by reversingthe fan operations or impulses and the same is also contemplated 'by myinvention. A process and different modifications of apparatuses areprovided by means of which moist goods in a tentering or other machineare quickly dried simultaneously with the operation of the machine andin an economical manner, saving a great amount of time and labor for theperfect drying of the goods as well as providing for the health beneathsaid chest with a mouth pcirtionad- 'jacent' the said open bottom, apipe upon said. chest in communication with saidchamber, and an aircirculator operatively connected to the saidpipes.

' 5. A'drier for a tentering or similar machine comprising a chesthaving a chamber through which the article to be dried is adapted topass and further having a compartment communicating therewith andhavingan open bottom, a pipe terminating beneath said chest with a mouthportion adjacent the said open bottom, a pipe upon said chest incommunication with said chamber, an. air circulator operativelyconnected to the said pipes and a heater for the circulated air arrangedwithin the path of travel thereof.

6. A drier for a tentering or similar machine comprising a chest havinga chamber through which the article to be dried is adapt-ed to pass andfurther having a compartment communicating therewith and having an openbottom, a pipe terminating beneathsaid chest with a mouth portion adandcomfort of the operators, and resulting in a more perfectly and evenlydried finish and product value. a What -I claim as new is l. The processof drying moisture-laden textile goods consisting in passing the goodsthrough a heated chamber, forcing air toward one side o'fthe goods andthrough the goods at a right angle to-the line of movement of the goodsand withdrawing the moisture-laden air at the'opposite side of thegoods.

2. A drier comprising a chest having a receiving chamber for the articleto be dried and further having a compartment therebeneath communicatingtherewith, a pipe having additional commercial freely entering saidcompartment, a hooded pipe above the chest, an air heater for the chestand an air circulator connected with the pipes.

3. A drier comprising a chest having a receiving chamber for the articleto be dried and further having a compartment therebeneath communicatingtherewith, a heater located in said compartment, a pipe freely enteringsaid compartment, a hooded pipe in connection with the chamber, and acirculator connected with the said pipes.

jacent the .said open bottom, a pipe upon said chest in communicationwith said chamber, an air circulating fan operatively connepted betweenthe said pipes and a heater arranged within the chest.

' 7. A drier for tentering machines comprising a plurality of spaced'chests surxrounding the cloth being operated upon, a

pipe terminating beneath each chest, a header for said pipes, hoodedpipes communicating with each of said chests, a

header for said hooded pipes, and an air circulating fan operativelyconnected between the said headers.

8. A drier for tentering machines-comprising a plurality of spacedchests surrounding the cloth being operated upon, a pipe terminatingbeneath each chest, a header for said pipes, hooded pipes communicatingwith each of said chests, a header for said hooded pipes, an aircirculating fan operatively connected between the said headers, heatingmeans for the air circulated by the said circulating means and airadmitting means for the chests.

9. A device of the class described comprising a chest through which anarticle to be dried is adapted to pass, an air heater for said chest,airpipes communicating with the chest at the opposite sides thereof andat the opposite sides of the path of travel of the goods to be dried andair circulating means for the said pipes and chest,

the said pipes-adapted to discharge and remove the air in a line at aright angle to ture-laden air at the opposite side of the the length ofthe goods. goods and returning the air for reapplioa- 10 10. The processof dryingmoisture-laden tion to the goods.

tielxtile 1goodls1 consisting il paising the goods In. testimony whereofI affix my signature.

5 t roug a eate 0 am er, orcin air toward one side of the goods andthrfiugh the FRANCIS ROLAND goods at a right angle to the line of move-Witness:

, ment of the goods, Withdrawing the mois- CALVIN H. BROWN.

